package guo;

/**
 * Hello world!
 *
 */
public class App
{
    private final Stu stu = new Stu();

    App(){

    }
    App(Stu stu){
        stu = new Stu();
    }
    Stu getMethodStu(){
//        stu = new Stu();      Cannot assign a value to final variable 'stu'
        return stu;
    }
}

